Transcript Ion Exchange Separation of Cadmium and Rare Earth

Participants
Valeriya Maljavko (Blr)
Roman Sverdlov (Blr)
Ivan Chagarin (Blr)
Darya Adamchuk (Blr)
Olga Popkova (Blr)
Supervisor
Ph. D. Oleg Dmitrievich Maslov, FLNR
Sector №8
Ion Exchange Separation of Cadmium
and Rare Earth Elements
Track Analysis of Uranium
Scientific Problem:
Cadmium purification
Application:
Possibility of 117mSn production from 116Cd
on the 116Cd(α, 3n)117mSn reaction
Equipment that was used
Microtron MT-25
Ion-exchange column
Gamma spectrometer
With HP Ge detector
Lavsan detector
Experimental Technique
• To estimate the ion exchange separation of cadmium and rare
earth elements, the mixture of CdSO4 with DyCl3 and NdCl3
has been irradiated at the Microtron MT-25 by the
bremsstrahlung beam of 22 MeV with the current of 5 µA
during 2 h
• Separation of Cd and rare earth elements by using ionexchange column filled with anion-exchange resin Amberlite
(IRA-401) in the presence of 2,5; 0,25; 0,02 mole/liter HCl
was carried out
• Activity of the irradiated mixture was measured by HPGe
detector of the gamma spectrometer of FLNR, JINR with the
energy resolution of 1,5 keV at gamma lines of 1333 keV for
60Co radionuclide
• Track analysis of uranium was made in the received samples.
The fission fragments produced by photons were recorded by
lavsan detector (U(, f))
Separation of cadmium and rare earth elements
by the use of anion exchange column
The gamma spectrum of the NdCl3 and DyCl3
The gamma spectrum of Cd
separated from Dy and Nd
Track analysis of uranium
Sample
Number of tracks
Contents of U, g/g
Fe-Mn concretion
(standard)
584
5•10-6
Extract of rare earth
elements
52
0,45•10-6
Extract of cadmium
72
0,6•10-6
Conclusion
These experiments have shown a possibility of
ion exchange separation of cadmium and rare
earth elements for 117mSn radionuclide
production.
The content of uranium has been determined
with the help of track method in the received
samples.
Special thanks
Ph. D. Gospodin Bozhikov
Ph. D. Marina Gustova
M. Sc. Mario Philippov
Ph. D. Anatolij Belov